Means for controlling the fluid outlet of ampules



Feb. 7, 1928,

G. N. HEIN MEANS FOR CONTROLLING THE FLUID OUTLET OF AMPULES Filed April16, 1927 7 %7% 5 allow @H Patented Feb. 7; 1923. V I 1 UNITED STATESlATENT OFFICE.

.enonen N. item, or sen rniinoisoo, ostrronnin. MEANS FUR CONTROLLINGTHE FLUID OUTLET OF AMPULES;

Application filed April 16, 1927. Serial No. 184,198. The presentinvention relates to the moons filtering screen and provided with ityield controlling the transferring or discharge able cmiuiression vnlve.of third from the mitlet of mnuules and is Referrrn to the drmvln 'swhere n l-llifl 1 l7 7 r: m J

adopted 4 s generally. ing parts, the numeral 1 designates n 0011- so heinvention are to provide ventionol thin glass ampule preierehl vt or ctrolling the discharge of pointed at its opposite ends as atfl, althoughthe on, et oi ampules; to provide the same may he pointedonlv at oneendnt filtering the discharged fluid 2-Fig. 4. Overone end of theoinpule admission into the barrel of a tightly fitted or stretched anelastic tubular 65 *ode c s e or other vhle reeepsleeve 8. The treeiendoi: the sleeve isnoren ondto provide or qnsi and positive inallyclosedhy a conjipressionvalve, illus means for sealing portinllyusedampules to tinted es comprising nyieldahle Wall 4, dispreclude thecirculation of air therethrough. posed transversely of the end; ofthesleeve With the above inentio? 2d and other ohzi -d provided with onelongatedislit 6, the 7 iects in view the invention co l the 1 0t whichare normallyinmeeting relnand l n or ports tion to the slit,constituting a valve opening.

' F the nc- The Wall 4i may be integral with ore part out in separatefrom the sleeve so long: as it extends under transversely otthe sleeveand is provided i, pr Withnn opening capable of being distorted. t

portion, size and minor trim The other end of. the enipuleinsy also hetion Within the scope oi ns may be pro ided With an elastic tubularsleeve 7 resorted to without departing from the detochnbly carrying atits "free endaii vo conispirit or sacrificing any of the advantages cnliilteringscreenlh the hese'lO of which is t0 of the invention. 7embraced by the end 8 of the sleeveeFigs.

To more fully comprehend the invention, Qimd 3.

or use in connection characters of reference indicate correspondit meansprior to novel construction herein: or de l coni 'ienying d. swings n.the claims h v stood that various: chnn reference is directed to theaccompanying The elastic sleeves after positioning on drawings, whereinoppos1te ends of the :nnpule gripped he- Fig. 1 is a iew in id l v tionof n tween the fingers and are given a slight lne he einpnle showing thetubular sleeve members eral movement W B sired to fracture in positionon each pointed end thereof. the znnpule ends, as shown in 3, 4e andFig. 2 is a view in side elevation of n 5, thefracturing etlordine; thefl id i'lQ double end sinpnle, illustrating in longifrom the mnpnle bygravity whentippedon In; tudinnl section the sleeve members in postend dl i admitted i uppe 6 1d 0f 0 w :1 cap covering the filtering means theends '5 s eeve 7, as shown in Fig. 3 closing the Fin, 5 is a. View invside elevation of an W 5 is elite-1161861 lilo 1001111 3 :1 view in iinil oi the sleeve carrying the 7 preferably over the other end, the endsoi:

tion, one bein provided ith a filt i the :inipule. This sir admissioniscontrolled screen, and the end oi? the other being pro- 136 5 31 the aH l ite t 1 1 vided wit it yieldeble compression valve. slit 6, HS Shownin 1f desired? A Sealf Fi 3 is a View Simflm to Fi 2 l i ing cap 11 maybe fitted over the outer end f th 21111191118 ba t a g, end of sleeve 7and sealing the unused. con- Fig. l: illustrates a single end ztrnpulewith tents 01? said ilmlmle fewest P -EQ- the sleeve member in positionemln'ncing its Figil ustletes a construction ivn fractured dischargeend. the end oi the sleeve 3 he 'ond the slotted ole bulb 9 :nnpnle withthe sleeve embracing its tapered rueture 12 provided with a l end, th5199, at it outer d b i trolled air vent 13. This structure pan \Jidgdith a i ld bl b lb h i a t ticulnrly adapted for i'forcing the fluidunder therein. pressure "from the empule Where speed is re- Fj 6 i a i id l ti f a sleeve quired or Where the density of the fluid conshowingthe compression valve in its normal t n s of the empule is too greet topass by or closed position. Y gravity through the filtering screen 9.

Fig. 7 illustrates the compression valve in In p o With h ve 3 psitioned its compressed or open position. Fig. 8 i over one end of theampule, and the sleeve int ill)

the ainpule are fractured; the slit Walls of sleeve 3 are compressedendvvise of the slit (5, asshown inFig. 7, opening the Slit therebyadmitting air into the ampule, allowing the fluid to discharge bygravity from its opposite iraetured enthand it sleeve 7 is in positionthe fluid passes through the lilter- ,ingscreen 9 into any desiredreceptacle.

Where the density ofthe thud too great to pass through the filteringmeans, the sleeve (Fig. 5) carrying thebulb structure 12 at its free endmay be used. In this construction, the airvent 13 is closed by placingthe linger thereover and the bulb compressed, which forces air throughthe slit (5 1n the Wall 5, thus forcing the fluid under pressure fromthe am pulse and through the filtering means. \Vhen the lingerie;removed from the air vent 13 and the same is opened to allow air toenter the bulb Stl'!l(lture, and pressure on the bull released the bulbassumes its normal position, the slit in the vall closes,tillttpl'GtfltltltE the ad mission of air into the ampule. a

One end2 of the ampule may be fractured and removed prior to placing thesleeve 3 thereover, and when the opposite end is broken, the ampulecontents rill be pre [cludedtrom flowing therefrom until such time asthe slit 6 of the sleeve is opened, admitting air into the ampule.

The sleeve 3 with the bulb structure 12 at its end may be used aspreviously described to force the fluid under compression from theampule or the samemay be used in the same manner, as the sleeves 3,illus trated in Figs. 1 to i inclusive. When used to control the gravityflow of the ampule contents it is only necessary to compress the Wall 5endwise of the slit 6, the necessary air to displace the fluiddischarging from the ampule being admitted through thenormally open vent13. p

In Fig. 8 the sleeve 7 is illustrated as being providedintermediate ofits ends with a transverse Wall 14 provided with a slit 15 adapted onendwise 0011'11')1'(3Ej.'-1l01] to open and close. i

It to be understood that the screen or filtering member may bepositioned on either side of the wall It in accordance withmanufacturing advantages.

With the sleeve T equipped as designated, it will be apparent that bothslits (i closing the body inwardly from its open end said wall providedwith a normally olosed vent adapted for distortion and opening onl'JtQSilll'Q being applied longitudinally of the we ll transveri'aely orthe elastic body.

In combination with a fluid eontainim. ampule having pointed ends; apair otyieldable tubular members, one stretched over each of said ends;an elastic wall dispos wl transversely across the free end of one or"said tubular membersasaid elastic u'all pro vided with a slit adapted-J'or distortion to provide a vent; and means carried by the othern'ien'ibcr for filtering the discharged fluid. i

3. An elastic tubular member :tor stretching over one tapered end of afragile fluid containingampule, said member comprising a tubular elasticbody open at one end and provided with a compressible bulb at its otherend; and a slit elastic Wall disposed transversely of said tubularmember at a point between the compressible bulb and the open end of thebody.

In testimony whereof I have signed my name to this specification.

GIEOIR G11) N. H hi I N,

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